CONVERSION OF PLASTIC WASTE INTO FUEL USING MICROWAVE-PYROLYZER WITH THE ADDITION OF ALUMINIUM DROSS AS A CATALYST

Hazeliana, Henry Litong (2015) CONVERSION OF PLASTIC WASTE INTO FUEL USING MICROWAVE-PYROLYZER WITH THE ADDITION OF ALUMINIUM DROSS AS A CATALYST. [Final Year Project Report] (Unpublished)

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Abstract

Aluminium dross is a by-products produced from the smelting process of aluminium. It has the potential of risking the environment as it will release hazardous gaseous when it is in contact with moisture such as ammonia, methane and hydrogen. In order to reduce the harmful effect of aluminium dross to the environment, it can be treated to become catalyst by undergoing physical as well as chemical processes by recovering aluminium hydroxide (Al(OH)3). Aluminium dross undergoes leaching process in 500 ml of sodium hydroxide (NaOH) at 10% concentration. The second stage was precipitation using hydrogen peroxide (H2O2) followed by calcination in a furnace at 600 ˚C for 3 hours. The characteristics of the untreated aluminium dross and treated aluminium dross have been studied using Brunauer-Emmett-Teller (BET) analysis. BET result showed an increase on the surface area of aluminium dross from 10.06 m2/g to 74.21 m2/g after treatment. The treated aluminium dross was used as a catalyst in converting plastic into liquid hydrocarbon in a modified microwave pyrolyzer with the condition of 1000W and 800W at 18 minutes and 15 minutes. The result is 1% of liquid obtained from the pyrolysis of plastic waste at the condition of 1000W for 15 minutes and 3% liquid at the condition 800W for 18 minutes. Microwave pyrolysis was also conducted without the presence of catalyst. The result is 1% liquid at the condition 1000W for 20 minutes and 3% liquid at the condition of 800W for 20 minutes.

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